New timetables go into effect Monday for the Long Island Rail Road that include service improvements for the Port Washington, Main Line / Ronkonkoma, Long Beach, Huntington and Babylon branches, according to the railroad.

On the Port Washington Branch: The LIRR will be restoring half-hourly weekend train service between Port Washington and Penn Station starting Nov. 16. The revised weekend service adds 32 trains on Saturdays and Sundays, restoring trains cut in September 2010, when off-peak and weekend service was reduced to hourly as part of larger Metropolitan Transportation Authority initiative to close a $900-million budget gap. The 30-minute service on weekdays was restored in May 2012.

Main Line/Ronkonkoma Branch: The LIRR is adding five trains to its weekday schedule:

* 4:09 p.m. eastbound train from Penn Station, arriving at Farmingdale at 5:04 p.m.: This train will help relieve crowded Ronkonkoma and Huntington trains, as it will be making stops at Woodside, Jamaica, Mineola, Westbury, Hicksville, Bethpage and Farmingdale.

* 5:01 p.m. eastbound train from Penn Station will have an added stop at Hicksville.

* 8:22 p.m. eastbound train from Penn Station, arriving at Hicksville at 9:11 p.m.: This new train will close a 48-minute gap in service to local stations between New Hyde Park and Hicksville and help relieve overcrowding on the trains that bookend this service. The new train will make stops at Woodside, Jamaica, New Hyde Park, Merillon Avenue, Mineola, Carle Place, Westbury and Hicksville.

* 7 p.m. westbound train from Farmingdale, arriving at Penn Station at 7:56 p.m.: This new train will make stops at Farmingdale, Bethpage, Hicksville, Mineola, Jamaica, Woodside and Penn Station.

Long Beach Branch: Starting on the weekend of Nov. 30 and continuing through the weekend of Jan. 4, the LIRR will be adding service on the Long Beach Branch to accommodate the holiday season. On Saturdays and Sundays, four additional trains will operate westbound between 9 a.m. and 1 p.m. and four additional eastbound trains will operate between 4 p.m. and 8 p.m. providing Long Beach customers with half-hourly service during these peak weekend travel hours.

Huntington Branch: During the same extended holiday period, one eastbound train has been added to the overnight schedule on Saturday and Sunday between Penn Station and Huntington. The train will leave Penn Station at 2:44 a.m.

Babylon Branch: During the same extended holiday period, one eastbound train overnight has been added on weekends between Penn Station and Babylon. The added train will leave from Penn Station at 1:13 a.m.

Customers can get new timetables at their stations or any LIRR terminal. Timetables are also available at mta.info/lirr and by calling the LIRR Customers Service Center using 511, the New York State Travel Information Line, and saying Long Island Rail Road. The new timetables will remain in effect through Feb. 23, 2014.